Sheet-feeding machine.



F. L; CROSS.

SHEET FEEDiNG MACHINE. APPLICATION FILED AUG-13, i914 Patent d Jan. 25,=1916.-

4 SHEETSSHEET I.

F. L. CROSS." SHEET FEEDING MACHINE. s APPucAHoyFILED-mam,1914

Patented Jan. 25, 1916.

4 SHEETS-SHEET 2.

F. L. CROSS."

SHEET FEEDING MACHINE. ARPLlCATlON FILED AUG.13,1914.

Patented Jan. 25, 191 6. I

4 SHEETS-SHEET 3.

@565 flay-Z4 'Q F.L.( ;R0ss.- .SHEET FEEDING MACHINE. I

APPLICATION FILED AUG. l3| 1914. v

Patented Jan. 25, 1916.

4 SHEETS-SHEET 4- :jz avemizhrmnx onoss,

or roar wssnmeron, NEW Yonn assrenoa FEEDER com any, A coaromrrom OE'MAINE.

neon.

'ro caoss was :SHmT-FEEDING MACHINE.

T 0 all! whom it may concern Be it known that I, FRANK L. Gnoss, a citizen of the United States, residing at Port Washington, in the county of Nassau and State of New York, have invented cer tain new and useful Improvements in'Sheet- Feeding Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. Y

' The invention relates to paper feeding machines-and more particularly to mechanism for interrupting the operation ofthe sheet handling .devices in case the sheet is not presented in proper position.

The object of the invention is to provide novel and improved mechanis'rnby which the devices which operate on the sheets may be thrown out of operation upon the failure of the sheet to beproperly positioned without requiring th stopping of the actuating cam shaft or other rapldly moving and com- .paratively heavy actuating mechanisms.

To this end the invention contemplates the provision of sheet controlled means for disconnecting the various sheet engaging devices from their respective actuating mechanisms so that they are rendered inactive or thrown out of operation while the actuating mechanism continues to be driven. This en ables the mechanism to be driven at a high speed and the feed of the sheets to bequiglrlv stopped and to beresumed withoutthe shock and 'wear on the parts inciaent to the stopping and starting ofthe actuating mechamsm.

The various features of the invention will be readily understood from an inspection of the accompanying drawings-and the following detailed description of the mechanism illustrated therein. V

In the drawings Figure 1 is a diagrammatic perspective view of so much of a paper feeding machine as is necessary to show the application of the present invention thereto; Fig. 2 is a side elevation certain parts being removed; Fig. 3 is'a detail of the throw-out mechanism; Fig. 4 is a sectional elevation; Fig. 5 is a detail of one of the cut-outs and Fig.- 6 is a'. detail side Specification of Letters Patent.

The invention comprises the features of construction and combination of parts hereinafter described and set forth in theclaims.v

elevation shoWi Patented Jan. 25, 1916. Application filed August 13,1914. Scrial'l'fi'o. 8564577.

In the drawings, the invention is shown as emhodiedfin the automatic sheet feeding machine known as the Cross paper feeder. In this machine a bank of feathered sheets is acted upon by two independently controlledjcombing wheels which are lowered upon the sheets at regular intervals and each of which is independently disengaged from the bank of sheets by cut-out mechanism controlled by the front edge of the sheet when it is advanced into position to be acted upon by the delivery rolls which carry away the top sheet and deliver it to the de vices by which it is brought into proper register-at the front guides of the printing press or other machine to which the sheets are to be fed." While the top sheet is being removed from the top of the bank by the delivery rolls, the second sheet is held by tail clamps which are raised from the bank during the action of the combing wheels.

' The bank of sheets is fed forward to maintam, it in proper position with relation to the combing wheels by feeding mechanism ,the feeding action of rvhich is controlled from the cut-out mechanism through which the combing rolls are raised;

The mechanism thus farrcferred to is of the usual construction and is substantially the some as that shownand described in Patent No. 812,260, February 13, 1906, with the exception that the bank of sheets is fed from the upper supply table to the low-:11,

feed table in the manner illustrated in the patent to Cross, 1,041,747, October 22, 1912, rather than by a traveling leader. I

As shown in the drawings the combing wheels are lowered upon the bank of sheets at regular intervals by the carn'2 which engages a roll 3 on the end of an arm 4 carried on the shaft 5. 'The shaft 5 also carries arms '6 which are connected through links 7 with the frames 8 which carry the combing heel. The sheet operated cut-out mecha- 9 adapted to engage the bank of sheets and connected by toggle links 10 with .a rod 11 carried by the arms 6. The upper end of one of the toggle links-is connected by slink 10o nism .for each roll comprises a presser foot 12 with an arm 13'lceseiy mounted on 'the cm 1 shaft 14 and held in position indicated in E" 4 against the-tension or a spring (not showig "finger 16 adapted to' lie across the the sheet and a pawl 17 arrange by a latch-'15.- The latch.15 carries-the trip ath of 4 to. be brought into engagement with the teethof a ratchet "18 icarried by the cam shaft when the sheet engages the trip finger. When this occurs, 'the ratchet-acts to disengage the latch so that thegpring (not shown) may- .straighten'the togg links thus "bringing the .press'er foot 9 down on the bank o-f'sheets andraising the combing wheel. The 'presser foot and combing wheelare raised and held in raised position during the delivery of the sheet by the cam 2.

- The delivery rolls comprise lower r0115 l9 and upper drop rolls 20 which are carried by "I a. rock sleeve 29.

. 34 on the rock sleeve 29,-the endof the link 'arms 21 secured to a rock shaft 22. The drop rolls are raised and lowered at proper intervals by a' cam 23 secured to the cam shaft 14, and engaging the roll 24 carried by anYarm 25 secured to the rock shaft 22iz' The sheet is advanced bythe delivery-rolls to the supplemental delivery or forward ing rolls by which the sheet is advanced into position at the front guides 28 of the press;

The supplemental delivery rolls comprise lower rolls 26 which are driven in unison" with the lower delivery rolls 1 9 and upper drop rolls 27 carried by arms 28 secured to cam 30 secured to the cam shaft 14 and en-' gaging a 'roll 31 carried, by a l ever 32. v The a lover engages one end of the link 33- the other end of which is connected to an arm being held in engagement with the lever by a spring 35. I

The mechanism for raising the tail clamps comprising abar 36 corresponds to the vertically movable bar of Patent No. 812,260;

One end of this bar is pivoted to a lever 37,- the lower arm of which is provided with apin 38 engaged by the notched end of a link The link 39 is pivoted to the lower end of a lever 40. th upper end of which carries a roll 41 engaging a cam 42 on a cam shaft 14. \Vhen the end of thelink 39is in en-' 'gagelnent with the pin 38, the cam 42 acts to raise and lower the tai clamps at proper periods in the cycle ofopcrations of the machine,

The mechanism for feeding the bank of sheets comprises a swinging lever 43 the lower-end of which is connected by link 44 with a pawl and ratchet mechanism similar to that shown in Patent No. 812,260 or Patent No. 1,041,747. The lever is operated upon by a spring 45 which tends to force it in a direction to feed the bank of sheets and is moved "in the opposite direption'against the tension of the spring by alink' 46 one end of which is connected to a crank pin 47 on the end ofthe cam shaft 14, and the othei' end ofwhich is provided with a slot 48 en- The drop rolls .27 are" raised and lowered at proper intervals by a.

gaging the pin 49 on the lever. The forward or feeding movement of the lever 43 "is controlled'through-a ratchet bar 50 connected to theJloWereIid of the lever and arranged to beengaged by'a stop pawrsr -when the combing wheels are thrown out. The stop pawl, is mounted on a collar 52 loosely mounted on the shaft- 53 and forced in a direction to engage the teeth of the ratchet bar; by aspring 54. The pawl 1s raised, and, lowered through an arm 55 mounted on the shaft 53 provided with .a

pin 56 arranged in a notch in the collar 52.

The end of the arm 55 is connected by a spring 57 with onearm of a bell crank lever 58 which is loosely mount-ed on.the cam shaft. The other arm of the bell crank lever is 'provided at its upper end with a notch engaging a pin 59, which projects fromone of the ',arms. 13. The spring 57 forms a yielding link through" which the 1 pawl 51 is raised when. the cut-out mechanlsm 1s re-set or moved. into its normal position indicated infFig. 4. When the combing wheel is raised thearm 13 and lever 58 move toward the right in Fig. 4 thus lowering the arm 5'5 so that the pawl 51 may engage the usedr to connect the bell crank lever. 58 and after.; A-

arm 55 for a reason which will appear here-' ratchet bar and arrest the feeding of the: ever 43. The yielding linkor spring 57 is In embodying all the features of the pres- I out Lrvention' in'a machine having the general :coii'stnuction above described; throw out mechanisint is.provided which is rendered active in case afsheet is not properly "positioned-at the front guidesisand which when rendered active discofineets itheiyarious dQVJCBS'WlllCh operate on the sheets from their prospective actuating cams so that.

their regular operation upon the sheets is interrupted and the feed of the sheets dis:

continued until thethrow-out'meehanism is re-set' by the operator. It is necessary in machines'of the character-described that the lowering of the. combing wheels and of. the drop rolls; shall= be properly timedini the cycle of operations -and'tliistiming is determined by the respective operating cams. It is 1mportant=therefore that re-setting of the throw-out mechanism which restablishes operative connection between the various of the machine. Y a

1n the construction shown. thevmeans-for disconnecting the mechanism for raising and low'eringthecombing rolls from the actuating cam comprises alatch arm60"project ing from a rock shaft Gland; adapted to engage the upper end of a prqectin'garm this position will hold the combing Wheels and presser feet lflflnraised position while l the low part of th", cum 2 is passing the l'ld of the arm 4. he rock shaft is forced in a direction tobring the latch 60 into active positionhy a spring 63 acting on a link 64 connected to one armof a three-arm lever 65 which issecured to the end of the rock shaft. The rock shaft is held in normal position against the tension of the spr1ng'63 by a link 66 pivoted to one arm of thelever 65 and provided with a latch 67 arranged to engage a fixed shoulder 68. The mechanism for disengaging the latch 67 and thus rocking the shaft 81 to move the latch arm 60 into active position is controlled by the sheet. This mechanism'comprises an arm 69 secured to a rock shaft 70 and arranged to lift the free end of the link 66: The rock shaft carries a, ratchet segment 71 arranged to he engaged by a pawl 72 carried on an oscillating pawl carrying arm 73. The arm 49 engaging a pin 7 9 on the pawl and. is yieldingly held in engagement with the pin by a spring indicated at 80. The rock sleeve 78 carries depending arms 81 to the lower'ends of which are pivoted the controller fingers 82. These fingers are arranged to play over tongues 83 which are arranged under the front edge of the sheet when in position at the front guides, and which its; provided with notches 84 directly back of the front edge of the sheet when in this position. When a sheet is properly positioned at the front guides the sheet guides the 'fin'gers 82 over the notchesSl so that the pawl 72 is maintained out of engagement with the ratchet 711 If a sheet is not in proper position, one of the fingers 82 will engage the notch'84 and arrest-the movement 0f*the guard arm 77 so that the will pass oil (if-the upper end of the guard arm and the pawl .,will engage-the ratchet 71 thus rocking the-rock shaft and' disengaging the latch 67. This will cause the'rock shaft 61 to be moved tp bring the latch arm 60 into active position v so that it will prevent ''hen the roll on the part of the actuating I, lever 65.

73 is oscillated by a cam 74 secured to the' the machine, the pawl 72 is held out of pin 79 of the pawlthe lowering of thehandling devices from their respective' actuating cams. The means for disconnecting the drop rolls 2? from their actuating cam comprises a latched arm 85 arranged to engage a notch formed in the end of an.

arm 86 which is connected with thelever 32. lever is on the high cam 30, the notch in the arm 86 is in position to he engaged by the latch arm'85 indicated in Fig. 6. The latch arm 85 is connected with the rock shaft 61 through a link' 87 which connects the upper end of an arm 88 projecting from the latch arm to one arm of the three-arm The means for disconnecting the drop rolls 20 from their actuating cam comprises a latch arm 89 secured to a rock shaft 90 and arranged to be brought into the path of a pin 91 when the lowering of the drop rolls is to be prevented. The shaft 90 carrying the latch arm 89 is provided with an arm 92 which'is connected by a link 93 with the arm 88 so that the latch 89 is rendered active when the rock shaft (31 is actuated in the manner above described.

he means for disconnecting the tail clamps from their actuating cam comprises -a link 94 the upper end of which is connected to an arm 95 projecting from the rock shaft- 61 and the lower end of which is connected to the link 39 through which motion is transmitted to the tail clamps from the cam 42. Vihen the shaft 61 is rocked in the manner above descrihed'the link 94 acts to raise the link 39 thus disengaging-the end of the link 39 from the pin 38 so that thetail clamps will not he raised by the cam 4:2. The means for rendering the bank feeding mechanism inactive comprises a rod 98 the upper end of which is connected with an arm 97 projecting from the rock Shaft (3i and the lower end of which passes through a suitable guide (Fig.- 4) and is arranged to engage the arm through which the stop pawl 51 is raised. lVhen the shaft 91 is rocked in the manner above described. the lower end of the rod 6 is depressed and" holds the arm i that the stop pawl 51 is not disengaged from the ratchet bar by the resetting of the cutout mechanism. The spring 57 yields when the bell crank position indicated in Fig. 4. to allow the hell crank lever to move withoutimparting moven cnt'lto the arm lever 58 is swung into the 1 115, 55 in its lower position. so 1 The throw-out mechanism is so timed that livery" drop rolls- 20. the cam 30 at this time being in posit-lento hold the drop rolls 27 in raised position. When-the throw-out I mecha nism operates therefore, the sheet fwhich has beenadvanced 'to the cut-outbythe combing wheels remains in this position a and is not forwarded by thedeliveryrolls until thethrow out mechanism is reset and the sheet separating and feeding mechanisms resume their normal operation.- The throwout mechanism may thus re-set by the operator by drawing the link 66 toward the left in Fig. 1 to reenga ge' the latch 67 or by manipulation of the handle forming one of the arms of the three-arm lever 65. In order that themechanisms -may not be thrown into operation at an improper tlme in the rotation "of the cam shaft; which might result in the improper handling of the sheet, means is provided forpreventing' the re-setting of-the throw-out mechanism except at a predetermined point in the rotation of the cam shaft. As shown, this 'out mechanism during that period in the 23, the shoulder 100- is-out'of the path of" rotation of the cam shaft during which the combing wheels "or thepresser feet 9 would be in engagement with the bank in the nor- 'm'al running of the machine The -mechanis'm for timing the re-setting of the thr0wout "mechanism also comprises a locking notch 99 formed in the latch arm 89 and" arranged to engage a shoulder 100 formed on the cooperating'pln 91. When the'lOW partofthe cam 23 is passing the roll 24: on the arm 25the shoulder 100- on the pin 91 engages the-notch '99, and locks/the latch arm 89 and the connected rock'shaft 61 against return to normal position. When the 101124 is on the high part of the cam "the notch 99- as indicated iii Fig. 6. There are two short periods during the rotation of the camshaft when the combing wheels and also the drop rolls are raised and when therefore the rolls 3 and 24: are onthe high parts of the cams '2 and 23. Inorder'that' the locking notch 99 and shoulder 100 may be in looking relation during one of-these' periods the'high part of the cam 23 has a slightly depressed portion 101 on which the'. roll 24 rides fora short period just before the cam comes into position to lower the drop rolls. During this period when the cams are in' position to maintain both of the drop rollsand' the' combing wheels" in I raised position therefore,- the notch 99 and the shoulder 100 cooperate to prevent resettlng of the throw out mechanism. There 1s but one period therefore in the rotation "of the 'cam shaft when re-setting of the throwout'mechan1sm is not prevented and the locking-devices described therefore form a timing mechanism for determining the point in the cycle of operations when the throw-out mechanism maybe re-set'andthe normal operation of the machine be resumed. While it is preferred to *employ the specific construction and arrangement of parts shown and described in embodyingthe' in vention in the Cross paper feeding machine, it will be understood that this construction and arrangement is not essential to the broader features of, the invention and may be varied or modified as found desirable orbest suited to the construction of the paper feeding machine in which it is to be em bodied.

of the invention and specifically described Having explained the' nature and object one form of mechanism in which it maybe embodied,'what; I claim is: i 0

1." A sheet feeding machine, having, in

combination, combing wheels, mechanism for normal operation of the bank feeding mechanism. Y

2. A sheet feeding machine, having, in combination, combing wheels, mechanism for raising and lowering the combing wheels,

delivery rolls including drop rolls, mecha- 'nism for raising and loweringthe drop rolls,

bank feeding mechanism, andsheet controlled throwoutmechanism for retaining the'idro'p rolls in raised position and-.for

discontinuing the normal operation of; the;

bank feeding means. Y

sheet' feeding machine-having, in combination, combing wheels, mechanism for raising and loweringthe wheels, bank feeding mechanism andlsheet controlled throw-out mechanism for discontinuing the normal operation of the bank feeding mechanism. 4. A combination, combing wheels, tail clamps, mechanism for alternately raising and lowering the combinglwheels and tail clamps,

sheet fee ding machine having, in

and sheet'contrdled mechanism for retaining the combing wheels in raised position 11- actuating mechanism.

and disconnecting the tail clamps from'their 5'. A sheet feeding machine. having,

combination, combing 'wheels,' mechanismfor raising and lowering the combing wheels, 1.12.

delivery rolls m'cluding drop rolls, mechanism for raising and lowering the drop rolls,

bank feeding mechanism and sheet controlled throw-out mechanism for retaining the combing wheels and drop-rolls in raised position and for discontinuing the normal; operation of the bank feeding means,

c. A Sheet feeding machine 'hajn ean combination, combing wheels, "mec anism for raising and lowering the combing wheels, 13 0 combing wheels and drop rolls n. 1 59,1252 an delivery rolls inclucling (irop rolls anrl mechanism for raising and lowering the drop rolls, tail clamps, mechanism for intermiiently actuating the tail clamps, bani: feeding mechanism, and sheet eoni-rolieci throw-out mechanism for retaining the comoing Wheels and drop rolls in raised position for disconnecting the tail clamps from their actuating mechanism and for (liscontin'uing the normal operation of the bank feeding means.

3, sheet feeding machine having, in combinaiiomsh et separating means, sheet delivering means, mechanism for actuating said separating and said clelivery means so intermittently operate on the sheets, and sheet controlled shrovzput mechanism for disconnecting said means from their actuating mechanisms to iisconeinue the operation of said means on the sheets.

8. A sheet feeding machine having, in combination, combing Wheels sheet delivery drop rolls, mechanism for raising and lowering the combing Wheels and clrop rolls, anrl sheet controlled devices for retaining the combing wheels and drop rolls in raisecl position.

9. A sheet feeding machine having, in combination, combing Wheels, sheet delivery drop rolls, mechanism for raising and lowering the combing Wheels and drop rolls, normally inactive devices for retaining the in raised position and sheet controlled mechanism for rendering said devices active.

10, A. sheet feeding machine having, in combination, means for operating on sheets, mechanism for actuating said means to in iermittently operate on the sheets, sheet controlled throw-out mechanism for disconnecting said means from its actuating mechanism to discontinue the operation of the said means on the sheets, and mechanism for timing the I'B-GODHCCilOD of said means with its actuating mechanism.

11. A sheetfeeding machine having, in combination, sheet separating means, sheet delivery means, mechanism for actuating seicl separating and sai delivery means to iniermitiently operate on the sheets, sheet controlled shrew-out mechanism for disconneciiing saicl means from their actuating mechanisms to discontinue their operation on the sheets, and. means fo timing the reconnection of said means Wren their actuating mechanisms,

12. A sheet feeding machine having, in

combination, combing Wheels, mechanism for raising and. lowering the Wheels, sheet controlled throw-out mechanismior (lisconnecr-ing we raising and lowering mechanism, and means for liming the resetting of the th row-out mechanism.

13. A sheerfeeding combination, combing raising anal lowering the wheels, ieiivery drop rolls, mechanism for raising and. lowering the clroo rolls, sheet controlled throwout mechanis i f r retaining the combing Wheels and drop r lls in raise position, and means for timing the resetting of she-throwone mechanism.

lei. sl ec feecling machine having, combination, combing Wheels, mechanism for raising ancllovvering the Wheels, delivery drop rolls, mechanism for raising and lowering e clrop rolls, sheet controlled throw-onimechsnisi 1 for retaining the combing sition, and means for preventing the resetiiingtoi the throw-out mechanism timing the periods when either the combing Wheels or drop rolls are normally lowered.

15; A sheet fee-fling machine having, in combination, combing Wheels, a cam for raising and lowering the combing Wheels, delivery clrop rolls, a cam for raising and lowering the drop rolls, normally inactive latches for retaining the combing wheels and drop rolls in raised position, and mechama'chine having, in heels, means for Wheels and drop rolls in raised ponism controlled by the sheet for rendering] the saicl latches active.

16. A sheer feeding machine having, in combination, combing raising and lowering the combing wheels, a lever engagerl by the cam, a norxtrally inactive lafich for engaging the lever to retain the combing Wheels in raised position, a lock notch in the lever for engaging the latch, anal shoes controlled mechanism for moving the latch into active position.

17. A sheet feeding machine having, in combination, delivery drop rolls, a, cam

for raising and lowering the rolls, a lever engaged by the cam, a normally inactive latch for engaging the lever to retain the drop rolls in raised posision, a locking notch on the latch engaged by a shoulder on the lever, and sheet controlled mechanism for moving the latcl inco active position.

FRANK L. 63383. Witnesses Ina L. F il -moor l3, OENSON,

wheels, a cam for IlOO 

